Sierra NEW Thermostat 143° 18-3561 Replaces: OMC 436195 60HP 70HP NOS 0810

Sierra Thermostat, 143° — Part Number 18-3561
Brand: Sierra | Condition: New

You are purchasing a new Sierra Thermostat, 143°F, part number 18-3561. This thermostat regulates engine coolant flow on Johnson/Evinrude outboard motors, opening at 143°F to allow full coolant circulation once the engine reaches operating temperature, maintaining optimal engine temperature and preventing overheating. Sierra is a leading manufacturer of aftermarket marine engine replacement parts trusted by marine technicians worldwide.

Condition Details: This is a new, uninstalled thermostat. As is common with NOS inventory, the original packaging may show signs of shelf wear or age. The thermostat itself is new and fully functional.

Specifications:

• Type: Thermostat
• Opening Temperature: 143°F
• Weight: 0.07 lbs

Cross-Reference Part Numbers:

• Johnson/Evinrude OEM: 436195 / 0436195
• GLM: 13150
• Mallory: 9-43023

Compatible Equipment (partial list — Johnson/Evinrude outboards):

• Johnson/Evinrude 60HP — 1993
• Johnson/Evinrude 60TTL — 1993
• Johnson/Evinrude 65HP — 1993
• Johnson/Evinrude 70HP — 1993
• Johnson/Evinrude 70TTL — 1993
• Verify specific model and serial number fitment before ordering

Why Choose Quality Replacement Parts? Sierra marine parts are engineered to meet or exceed OEM specifications, delivering reliable performance in demanding marine environments. Sierra has been a trusted name in aftermarket marine replacement parts for decades.

Returns: We proudly offer hassle-free returns. If you are not completely satisfied with your purchase for any reason, simply open a return request through eBay within 30 days of purchase and we will take care of you promptly.

Thank you for choosing QBS Parts Inc! We truly appreciate your business. If you have any issues whatsoever with your order, please give us the opportunity to resolve it before leaving feedback — we are committed to making every transaction a great experience.

Please verify fitment using your engine's model and serial number before purchasing. Feel free to message us with any questions — we're here to help!

QBS Parts, Inc. — Gardena, CA